Saturday, November 30, 2013

MECHANICAL ENGINEERING JOB INTERVIEW QUESTIONS

MECHANICAL ENGINEERING JOB INTERVIEW QUESTIONS:-

1.)What is Geyser Pressure Valve?

Ans. To release the pressure created inside due to evaporation of water.

2.)What is the function of scoop in BFP (Boiler Feed water pump) in Thermal Power Station?

Ans. The Function of Scoop tube is regulating the varying amount of oil level in the coupling during operation of infinite variable speed.

3.)Why is it that the maximum value which the residual stress can reach is the elastic limit of the material ?

Ans: A stress in excess of elastic limit, with no external force to oppose it, will relieve itself by plastic deformation until it reaches the value of the yield stress.

4.)Why fatigue strength decreases as size of a part increases beyond around 10 mm?

Ans: Perfection of material conditions is possible at lower sizes and as size increases, it is not possible to attain uniform structure of the material.

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